Steam-heating apparatus.



E. E. GOLD.

STEAM HEATING APPARATUS. V APPL'ICATION FILED APR. 2. 1915.

1,167,816, Patented Jan. 11, 1916.

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INVENTOR .2-

EDWARD E. GOLD, OF NEW YORK, N. Y., ASSIGNOR TO GOLD CAB, HEATING & LIGHTING COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

STEAM-HEATING AIBPARATUS.

Specification of Letters Patent.

Patented Jan. ii, 1916.

Application filed April 2,1915. Serial No. 18,698

To all whom it may concern I I residing in the borough of Manhattan, city, a

county, and State of New York, have invented certain new and useful Improvements in Steam-Heating Apparatus, of which the following is a specification.

My invention relates tov steam heating apparatus and consists. in the provision of cells may be adapted for uses .for which special cells have heretofore been provided and whereby the making of thermostatic cells of different constructions isv rendered unnecessary.

In practical "use the thermostatic cell illustrated in my Patent No- 632,937 has been extensively employed particularly in connection with T-trapssuch as illustrated in the accompanying drawings. It will be perceived that the use of the cell provided with a boss as shown in said patenthas required that two types of cell should be kept in stock as many steam heating systems require a cell having plain sides andmany require a cell provided with a boss. The side of the cell in which the boss has heretofore been formed being stamped or drawn to produce the boss occasionally has the effect of weakening the cell at such point and the cells occasionally break at this place. It further happens that the expansion of the cell under the pressure of its volatile content has the effect of bending the boss inward so that on the next expansion of the cell'it will not have the full movement for which it was designed. To improve the construction of cell in this respect and to accomplish the advantages noted, I have made use of a cell having plain sides and have provided the same with an attachment which contains the boss and has means for V plate E with which the boss F is also inattaching it to the cell.

A desirable form in which my invention may be embodied is illustrated in the accompanying drawing wherei'n Figure 1 illustrates my invention in place inthe outlet of a steam heating system wherein the trap is shown in section. Fig. 2 is a plan View of my attaching means in place upon the thermostatic cell; and Fig. 3 is a side view of the attaching device separate. Fig. 4 illustrates a modified form of the invention; and Fig. 5 1s a cross SQClZlOD 7 thereof on line 5-5 Fig. 4.

- bolt D.

In the accompanying drawing, the outlet of a steam heating system .is illustrated which terminates in .the T-trap A. This trap is of usual design and embodies a casing (a which at its lower end has an. outle or, discharge port b., The water of condensatlon passes out from the steam heating system through the port 0, and this port is controlled by an outlet valve consisting of the cell or expansible vessel B. This is usually made of spring metal such as phosphor bronze or the like and contains some volatile fluid such as alcohol or ethyl chlorid and operatesat a temperature of substantially 170 to 200 F. At the lower temperature'the vessel becomes contracted and the Water of condensation freely passes out of the return pipe 0 andthe port I). When steam begins to escape from the outlet 0 the thermostatic cell B is caused to expand by I the volatilization of its fluid contents, and thereupon its side closes the outlet port 0..

The spring C maintains the thermostatic cell away from the outlet 0 when it is contracted and its position is adjusted by the According to my invention a plate E is provided which is 'detachably connected to the cell andwhich has a boss F preferably substantially centrally located as illustrated and this boss registers in a central cavity d .in the end of-the adjusting screw D" and thereby the device serves to support the thermostatic cell B and to keep it in proper position relative to the outlet port 0. Means are provided to'connect the said plate E to the thermostatic cell B and to hold the parts in proper relative position and as illustrated such means take the form of arms G with which the plate is provided andwhich are illustrated as being three in number and substantially equidistant from each other and formed integral with the tegraL- The arms G are bent at 9 so that their ends are adaptedto pass around the arm and these shoulders are adapted tosnap over the rib or seam b which is formed at the junction of the two halves of the thermostatic cell B. The said attaching means is preferably formed all of one piece and of a spring metal such as phosphor bronze, sheet metal, etc. It may be easily applied to the thermostatic cell B and the bent ends of the arms G snap over the seam easily for which purpose they are slightly bentup as at 9 and the shoulder 9 serves to hold the attachment in place on the cell.

of further fluid from the radiator pipe.-

When the thermostatic cell or diaphragm B contracts by reason of the spring metal of which it is made it will resume the position shown in. the drawing and the spring G will cause the boss to remain in the cavity d in the bolt 1) so that the cell will at all times be supported in operative position.

I prefer 'to make the retaining device of spring sheet metal as shown in Figs. 2 and 3, but if desired it could be made ofwire as shown in Fig. 4. Heretwo wiresare employed and each. wire is formed with a loop making the desired boss F. The wires are preferably connected together as by welding at H. The free ends of'each wire are bent to pass around the side of the cell B and hold the cell as in the sheet metal form. If desired a sheet metal boss M may be applied over the ,wires and secured by the same weld.

It will be perceived that by the use of my invention but one type of thermostatic cell is required to be kept in stock, and this may be used in its original shape or by the addition of my invention the same cell is adapted for uses where heretofore a special cell provided with a boss has been required. Such invention enables me to dispense therefore with the special cell and to obtain all the advantages thereof with none of'its defects.

The retaining device here described may easily be attached to the cell before it is inserted in a trap, and may be removed from the trap with the cell and may then be easily detached from the cell by springing its arms out of their attaching position and thereupon if desired, the cell is available for use when a plain cell is required.

I have illustrated in the accompanying drawing the most desirable manner of constructing my invention now known. to me, but the same may be modified and equivalent devices substituted for those employed .byme if within the limits of the appended claims.

What I claim is 1. A retaining device for a thermostatic cell, comprising a plate, arms on said plate having bent spring ends adapted to engage.

ing bent ends adapted ,to spring over the side of the cell and hold the plate in place and being detachable therefrom and anou'twardly projecting boss on said plate.

4;. A. retaining device for a thermostatic cell comprising a plate, arms on said. plate having bent'spring ends the extremities of which are shouldered and are adapted to clasp the sides of said cell and hold the plate therein by reason of said shoulders passing over the seam in the'cell, and said cell being removable from said arms and an outwardly projecting boss on said plate.

5. A retaining device for a thermostatic cell comprising a plate, arms on said'plate having bent ends the extremities of which are shouldered and are adapted to clasp the sides of said cell and hold the plate therein by reason of said shoulders passing over the seam in the cell, and an outwardly projecting-boss on said plate, said plate and arms being integral'and formed of spring metal.

said plate having an outwardly projecting.

boss, and said arms, plate and boss being integral and formed of spring metal.

7. A portable retaining device for a thermostatic cell formed of spring metal having an outwardly projecting boss and said device provided with spring arms having hooks which are adapted to spring over and clamp the sides of a cell and to be readily detached therefrom.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

EDWARD E. GOLD.

Witnesses HENRY M. TUBE, FRED WHITE. 

